Iowa, 2002Flash Flood in Iowa, August 23, 2002
August 23, 2002 · NWS OAX · 1 event in 1 county or zone
1 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
Open the live radar over this ground
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
What forecasters said that day
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Omaha, NE wrote its last area forecast discussion before the first event at Aug 23, 1:15 AM CST, 15 minutes earlier.
Area forecast discussion, Aug 23, 1:15 AM CST, 15 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
215 AM CDT FRI AUG 23 2002
HEAVY RAINS OVER PARTS OF CWA OVERNIGHT AND EARLY THIS AM HAVE
DUMPED GROUND TRUTH AMOUNTS OF SLIGHTLY OVER 2.00 IN 24HRS OVER
SOME LOCATIONS. RADAR ESTIMATES UP TO 3-4 WILL LIKELY BE VERIFIED
ONCE REPORTS BEGIN TO FLOW IN LATER. RADAR LOOPS CONTINUE TO SHOW
TRAINING STORMS. WITH STORMS CONTINUING TO BACK BUILD...FLASH FLOOD
THREAT WILL CONTINUE THRU MORNING. CORFIDI VECTORS SHOW SLOW
MOVEMENT TO THE NE. PER 00Z UAA...REGION UNDER RIGHT REAR QUAD OF
JET. RUC HAS HAD GOOD HANDLE ON THE UPPER LEVEL DIVERGENCE THUS
FAR. SHORTWAVE ASSOCIATED WITH THESE STORMS IS MOVING NEWD OVR NWRN
IA...WITH ANOTHER CIRCULATION OF NOTE OVER SWRN NEB RESPONSIBLE FOR
LINE OF CONVECTION MOVING NEWD. THESE STORMS HAVE WEAKEND SOMEWHAT
LAST 45 MIN...BUT WL NEED TO MONITOR CLOSELY. WL HAVE TO UP POPS
FOR MORNING HOURS ACROSS ENTIRE CWA.
AVN SEEMED TO HAVE BEST HANDLE ON THE CONVECTION OVR ERN NEB/SWRN
IA...BUT WASNT DOING WELL WITH ONGOING CONVECTION OVER SWRN NEB.
WL TREND END OF PRECIP FROM NW TO SE TDY WITH CONVECTION ENDING OVER
THE SE BY EARLY AFTERNOON.
NEXT SHORTWAVE COMES ROLLING INTO NWRN NEB LATER TONIGHT. FROM
HERE...MODELS DIVERGE...AND SO HAVE TAKEN A BLEND. HAVE BOOSTED
POPS FOR TONIGHT...SAT...SAT NIGHT. ETA IS MUCH MORE AGRESSIVE WITH
SHORTWAVES THAN AVN.
OVERALL HAVE MADE MINOR CHANGES TO TEMPS THRU FORECAST.
.OMA...NONE.
GRIFFIS
In the hours before
Local storm report, Aug 22, 7:55 PM CST, 5 hours 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
855 PM CDT THU AUG 22 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
830 PM 5 S STANTON NE 60 MPH TSTM GUST
08/22/02 STANTON REPORTED BY STORM
SPOTTER.Local storm report, Aug 22, 8:46 PM CST, 4 hours 44 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
946 PM CDT THU AUG 22 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0942 PM 9 NW OMAHA EPPLEY AIRFIEL NE 1 INCH HAIL
08/22/02 WASHINGTON REPORTED BY STORM
SPOTTER.Local storm report, Aug 22, 11:15 PM CST, 2 hours 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1213 PM CDT FRI AUG 23 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
900 PM 5 W LINCOLN NE 1 INCH HAIL
08/21/02 LANCASTER HEAVY RAIN REPORTED BY
LAW ENFORCEMENT OFFICIAL.
941 PM CERESCO NE .75 INCH HAIL
08/21/02 SAUNDERS REPORTED BY STORM
SPOTTER. EVENT DURATION
3 MINUTES.
1045 PM LINCOLN NE .75 INCH HAIL
08/21/02 LANCASTER REPORTED BY PUBLIC.
1110 PM LA VISTA NE WIND DAMAGE
08/21/02 SARPY ESTIMATED 60 MPH WINDS
WITH POWER LINES AND
TREES DOWN, REPORTED BY
LAW ENFORCEMENT
OFFICIAL. EVENT
DURATION 15 MINUTES.
1110 PM CERESCO NE WIND DAMAGE
08/21/02 SAUNDERS EVENT DURATION 15
MINUTES.
1112 PM BELLEVUE NE .75 INCH HAIL
08/21/02 SARPY REPORTED BY MEDIA.
1115 PM LINCOLN NE .88 INCH HAIL
08/21/02 LANCASTER
1115 PM LINCOLN NE WIND DAMAGE
08/21/02 LANCASTER TREES DOWN AND SKYLIGHT
BLOWN OFF OF CHURCH,
REPORTED BY EMERGENCY
MANAGEMENT.
1145 PM LINCOLN NE .88 INCH HAIL
08/21/02 LANCASTER SCATTERED REPORTS OF
TREES AND POWER LINES
DOWN. REPORTED BY
EMERGENCY MANAGEMENT.
642 PM 9 NW ALBION NE 1 INCH HAIL
08/22/02 BOONE REPORTED BY COOPERATIVE
OBSERVER. EVENT
DURATION 5 MINUTES.
653 PM 5 N ALBION NE 1.75 INCH HAIL
08/22/02 BOONE REPORTED BY LAW
ENFORCEMENT OFFICIAL.
658 PM ALBION NE 1.75 INCH HAIL
08/22/02 BOONE REPORTED BY LAW
ENFORCEMENT OFFICIAL.
658 PM 5 N ALBION NE 1.75 INCH HAIL
08/22/02 BOONE REPORTED BY LAW
ENFORCEMENT OFFICIAL.
755 PM 2 NE NEWMAN GROVE NE 1.75 INCH HAIL
08/22/02 MADISON HAIL COVERING THE
GROUND REPORTED BY
PUBLIC.
828 PM MADISON NE .75 INCH HAIL
08/22/02 MADISON REPORTED BY PUBLIC.
830 PM 5 S STANTON NE 60 MPH TSTM GUST
08/22/02 STANTON REPORTED BY STORM
SPOTTER.
942 PM 9 NW OMAHA EPPLEY AIRFIEL NE 1 INCH HAIL
08/22/02 WASHINGTON REPORTED BY STORM
SPOTTER.Local storm report, Aug 23, 12:59 AM CST, 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
159 AM CDT FRI AUG 23 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0150 AM 2 E ASHLAND NE FLOOD
08/23/02 SARPY US HWY 6 UNDER 2 TO 3
FEET OF WATER AND
MUD.REPORTED BY LAW
ENFORCEMENT OFFICIAL.Local storm report, Aug 23, 1:03 AM CST, 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
203 AM CDT FRI AUG 23 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1145 PM PLATTSMOUTH NE FLOOD
08/22/02 CASS HWY 66 UNDER WATER EAST
OF LOUISVILLE TO CEDAR
CRK SPUR. PLATTSMOUTH
STREETS FLOODED.
CITIZEN HAD TO BE
RESCUED FROM CAR
STALLED IN FLOOD
WATERS. REPORTED BY LAW
ENFORCEMENT OFFICIAL.Flash Flood, Mills
- When
- August 23, 1:30 AM CST to 3:30 AM CST
- Where
- Mills County, West Portion
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 41.034, -95.621 (the zone’s center; the record gives no point)
Heavy rain producing thunderstorms tracked across southeast Nebraska and southwest Iowa during the late evening Thursday (8/22) and Friday morning (8/23). For some areas it was the second night in a row of heavy rain. Flooding in western Mills county included the evacuation of residents near Keg Creek near Glenwood due to flood waters. New power poles were undermined due to severe flooding on 190th street near Pacific Jct. Rainfall in southwest Iowa included 3.14 inches in Glenwood and 2.29 inches at Hamburg.
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Lightning Strike in Missouri, August 23, 20024 deaths · 1 event
- Lightning Strike in Tennessee, August 23, 20022 deaths · 1 event
- Flash Flood and Hail in Oklahoma, August 23, 20021 injured · $3.8 million · 1.5 in hail · 18 events
- Tornado in Indiana, August 23, 2002$200,000 · F1 · 1 event
- Hail in Nebraska, August 23, 2002$600,000 · 1.75 in hail · 1 event
- Flash Flooding in Michigan, August 23, 2002$265,000 · 2 events
- Hail and Damaging Winds in Nebraska, August 23 to 24, 2002$177,000 · 1.75 in hail · 10 events
- Hail and Damaging Winds in Texas, August 23, 2002$115,000 · 1 in hail · 5 events
- Hail and Damaging Winds in Ohio, August 23, 2002$83,000 · 1 in hail · 8 events
- Damaging Winds and Lightning Strikes in Indiana, August 23, 20021 injured · $47,000 · 50 kt wind · 6 events
- Hail and Damaging Winds in Kansas, August 23, 2002$50,000 · 1.75 in hail · 6 events
- Damaging Wind in Missouri, August 23, 2002$50,000 · 70 kt wind · 1 event
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5315298.